Foliar infection with Xanthomonas perforans alters response to root-knot nematodes in tomato
Plants experience multiple biotic stressors, both above-ground and below-ground pathogens and pests. While multiple pathogens infect plants naturally, research has been predominantly focused on binary interactions between the host and a single pathogen. Here, we investigated the outcome of single an...
| Veröffentlicht in: | Plant disease. - 1997. - (2025) vom: 24. Apr. |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2025
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| Zugriff auf das übergeordnete Werk: | Plant disease |
| Schlagworte: | Journal Article Mi allele bacterial infection coinfection multi-trophic interactions nematode infection |
| Zusammenfassung: | Plants experience multiple biotic stressors, both above-ground and below-ground pathogens and pests. While multiple pathogens infect plants naturally, research has been predominantly focused on binary interactions between the host and a single pathogen. Here, we investigated the outcome of single and simultaneous infection of tomato plants by parasitic root-knot nematode Meloidogyne spp., and foliar bacterial plant pathogen, Xanthomonas perforans, which causes bacterial spot disease. We assessed the interactions of these pathogens and the disease outcome on nematode-resistant and susceptible varieties that are near-isogenic (NIL) for the Mi resistance gene. Greenhouse experiments indicated that the presence of Xanthomonas perforans supported the increased proliferation of root-knot nematode, specifically, M. incognita, on nematode-resistant cultivar containing Mi resistance gene, with no significant influence on nematode-susceptible cultivars. On the other hand, Mi-resistance gene harboring tomato cultivars displayed increased susceptibility towards bacterial spot pathogen irrespective of the presence of nematode. These findings suggest that foliar bacterial infection may compromise Mi-mediated resistance to parasitic nematodes. It is essential to consider simultaneous infections by multiple pathogens when ensuring the long-term durability of the host resistance |
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| Beschreibung: | Date Revised 24.04.2025 published: Print-Electronic Citation Status Publisher |
| ISSN: | 0191-2917 |
| DOI: | 10.1094/PDIS-01-25-0136-SC |